Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 03:48

General

  • Target
    4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe
  • Size 93KB
  • Sample240613-ec3f3atbng
  • SHA256 4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3464
      • C:\Users\Admin\AppData\Local\Temp\4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe
        "C:\Users\Admin\AppData\Local\Temp\4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4580
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2396
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:3456
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a4A96.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:5020
            • C:\Users\Admin\AppData\Local\Temp\4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe
              "C:\Users\Admin\AppData\Local\Temp\4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe"
              4⤵
              • Executes dropped EXE
              PID:2816
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops startup file
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:5072
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:3424
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2244
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1692
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2708

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                GoogleUpdateCore.exe

                • Path C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
                • Size 258KB
                • SHA256 a31c974ecfc6088a80b1494d4d670eb7d68702d46cbcca0b9c6d3ca5f6332d1d
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 3bfe4f70173faf12dafe08bcabf4e8287caea7040a400b4abcc9cb4c833ca3ca
                • MD5 SHA1 SHA512 SSDEEP

                windowsdesktop-runtime-8.0.2-win-x64.exe

                • Path C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
                • Size 644KB
                • SHA256 f168cda7cfa0f4f1d8dc26f615772410afe41b43fbc3da3cfe2c249b1eadca30
                • MD5 SHA1 SHA512 SSDEEP

                $$a4A96.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a4A96.bat
                • Size 722B
                • SHA256 65981d74a6a5a85d89e6c467bab464ce84acb6fe0e7b2771e646054815cacc3c
                • MD5 SHA1 SHA512

                4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\4bab45ceecd67d27ce9272c77022456c71ac3868f9dbc4dea72d126e4bbef5a1.exe.exe
                • Size 59KB
                • SHA256 ff4ac75c02247000da084de006c214d3dd3583867bd3533ba788e22734c7a2bf
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 e4b85b1edd03642cf845907985a60ace501a481804fc68d4862e6c119d3fbc18
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\_desktop.ini
                • Size 9B
                • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
                • MD5 SHA1 SHA512

                memory/4580-9-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4580-0-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/5072-11-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/5072-5220-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/5072-18-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/5072-8678-0x0000000000400000-0x0000000000440000-memory.dmp